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Megan McArdle

Megan McArdle - Megan McArdle is a senior editor for The Atlantic who writes about business and economics. She has worked at three start-ups, a consulting firm, an investment bank, a disaster recovery firm at Ground Zero, and The Economist. More

Megan was born and raised on the Upper West Side of Manhattan, and yes, she does enjoy her lattes, as well as the occasional extra-dry skim-milk cappuccino. Her checkered work history includes three start-ups, four years as a technology project manager for a boutique consulting firm, a summer as an associate at an investment bank, and a year spent as sort of an executive copy girl for one of the disaster-recovery firms at Ground Zero … all before the age of 30.

While working at Ground Zero, Megan started Live From the WTC, a blog focused on economics, business, and cooking. She may or may not have been the first major economics blogger, depending on whether we are allowed to throw outlying variables such as Brad Delong out of the set. From there it was but a few steps down the slippery slope to freelance journalism. She has worked in various capacities for The Economist, where she wrote about economics and oversaw the founding of Free Exchange, the magazine's economics blog. She has also maintained her own blog, Asymmetrical Information, which moved to The Atlantic, along with its owner, in August 2007.

Megan holds a bachelor's degree in English literature from the University of Pennsylvania and an M.B.A. from the University of Chicago. After a lifetime as a New Yorker, she now resides in northwest Washington, D.C., where she is still trying to figure out what one does with an apartment larger than 400 square feet.

Ask the Editors: What's Wrong with Deflation?

By Megan McArdle
Mar 29 2009, 7:00 PM ET Comment

Corey asks:

Policymakers are concerned about possibly deflation - but I'm confused as to why lower prices is a problem. It's been happening in technology for decades without mayhem? And after the oil price shocks of 2008, I'd expect prices of other goods to drop as the cost of maintaining the supply chain have come down. My question is how do we tell the good type of deflation (firms are learning how to be more efficient) from the bad type, and what exactly is the bad type?

In theory, deflation sounds great!  You have your same paycheck, and everything costs less.  What's not to love?




There are two problems with deflation.  The first is that everyone has the same paycheck.  But since the stuff they are producing is worth less, they are suddenly less valuable to their employers.  Some of those people will suddenly be producing less than they are paid, and their employers will show them the door.

In theory, people will accept lower wages.  But in practice, wages (and more than a few prices), are what economists call "sticky" downward.  It is easier to fire people than to lower everyone's wage 5%.  The result is unemployment.  Anyone who has been unemployed for a long time can testify that it is much worse than a small wage reduction.  This may be why wages seem to be proving much less sticky in this downturn than in previous recessions--but the rising unemployment rate testifies that they are still sticky.

The other problem is that you don't just have your same paycheck; you have your same debt payments.  For business owners, or those who were laid off and had to accept a job at a lower wage, their debt becomes steadily harder to repay.  The result can be business failures, bankruptcies, and other unpleasantness.

Of course, hyperinflation isn't exactly amusing either.  With monetary policy, a very small amount of fairly predictable inflation (under 2%) seems to be optimal:  enough to grease the wheels of commerce without providing any nasty disincentives to invest in the future.
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